#4D5799
Closest named color: Twilight (#4E518B). oklch(48% 0.106 275.2), rgb(77, 87, 153).
Aa
White text reads best on this color (6.69:1).
About this color
#4D5799 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.106 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.025 away. White text reads best on it, at 6.69:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #4D5799 |
| RGB | rgb(77, 87, 153) |
| HSL | hsl(232, 33%, 45%) |
| OKLCH | oklch(48% 0.106 275.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4D5799 | 6.69:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #4D5799 | 3.13:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #4D5799 text on white | 6.69:1 | AA | Lc 82.9 | Fine for body text |
| #4D5799 text on black | 3.13:1 | AA large text | Lc -19.0 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B6BFE3
oklch(81% 0.052 274.2)
-
Step 400
400
#919DD4
oklch(70.7% 0.082 274.6)
-
Step 500
500
#7784C9
oklch(63.2% 0.105 274.9)
-
Step 600
600
#606CB6
oklch(55.5% 0.115 275)
-
Step 700
700 (this color)
#4D5799
oklch(48% 0.106 275.2)
-
Step 800
800
#414A7F
oklch(42.7% 0.088 274.8)
-
Step 900
900
#373E66
oklch(37.7% 0.069 275.1)
-
Step 950
950
#20253C
oklch(27.1% 0.043 273.8)
#4D5799 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #3D5F9C | 0.027 |
| Deuteranopia (no green cones) | #365998 | 0.029 |
| Tritanopia (no blue cones) | #2F6570 | 0.095 |
| Achromatopsia (no color) | #5C5C5C | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D5799
#4D5799
oklch(48% 0.106 275.2)
- #6F5C00
#6F5C00
oklch(47.9% 0.098 94.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4D5799, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.025
- Dusky Blue #475F94 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.028
- Dusk #4E5481 ΔE 0.038
- Denim #3B638C ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.049
- Dusk Blue #26538D ΔE 0.053
- French Blue #436BAD ΔE 0.058
Use #4D5799 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.